102212201212221 has 16 divisors (see below), whose sum is σ = 136695165713600. Its totient is φ = 67935375260928.

The previous prime is 102212201212213. The next prime is 102212201212223. The reversal of 102212201212221 is 122212102212201.

It is not a de Polignac number, because 102212201212221 - 2³ = 102212201212213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212201212223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14814510 + ... + 20588688.

It is an arithmetic number, because the mean of its divisors is an integer number (8543447857100).

Almost surely, 2^{102212201212221} is an apocalyptic number.

It is an amenable number.

102212201212221 is a deficient number, since it is larger than the sum of its proper divisors (34482964501379).

102212201212221 is a wasteful number, since it uses less digits than its factorization.

102212201212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792028.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102212201212221 its reverse (122212102212201), we get a palindrome (224424303424422).

The spelling of 102212201212221 in words is "one hundred two trillion, two hundred twelve billion, two hundred one million, two hundred twelve thousand, two hundred twenty-one".